RHEL 7 : firefox (RHSA-2020:5239)

high Nessus Plugin ID 143370
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:5239 advisory.

- Mozilla: Variable time processing of cross-origin images during drawImage calls (CVE-2020-16012)

- Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code (CVE-2020-26951)

- Mozilla: Fullscreen could be enabled without displaying the security UI (CVE-2020-26953)

- Mozilla: XSS through paste (manual and clipboard API) (CVE-2020-26956)

- Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions (CVE-2020-26958)

- Mozilla: Use-after-free in WebRequestService (CVE-2020-26959)

- Mozilla: Potential use-after-free in uses of nsTArray (CVE-2020-26960)

- Mozilla: DoH did not filter IPv4 mapped IP Addresses (CVE-2020-26961)

- Mozilla: Software keyboards may have remembered typed passwords (CVE-2020-26965)

- Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5 (CVE-2020-26968)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected firefox package.

See Also

https://cwe.mitre.org/data/definitions/79.html

https://cwe.mitre.org/data/definitions/120.html

https://cwe.mitre.org/data/definitions/212.html

https://cwe.mitre.org/data/definitions/354.html

https://cwe.mitre.org/data/definitions/358.html

https://cwe.mitre.org/data/definitions/416.html

https://cwe.mitre.org/data/definitions/451.html

https://cwe.mitre.org/data/definitions/829.html

https://access.redhat.com/security/cve/CVE-2020-16012

https://access.redhat.com/security/cve/CVE-2020-26951

https://access.redhat.com/security/cve/CVE-2020-26953

https://access.redhat.com/security/cve/CVE-2020-26956

https://access.redhat.com/security/cve/CVE-2020-26958

https://access.redhat.com/security/cve/CVE-2020-26959

https://access.redhat.com/security/cve/CVE-2020-26960

https://access.redhat.com/security/cve/CVE-2020-26961

https://access.redhat.com/security/cve/CVE-2020-26965

https://access.redhat.com/security/cve/CVE-2020-26968

https://access.redhat.com/errata/RHSA-2020:5239

https://bugzilla.redhat.com/1898731

https://bugzilla.redhat.com/1898732

https://bugzilla.redhat.com/1898733

https://bugzilla.redhat.com/1898734

https://bugzilla.redhat.com/1898735

https://bugzilla.redhat.com/1898736

https://bugzilla.redhat.com/1898737

https://bugzilla.redhat.com/1898738

https://bugzilla.redhat.com/1898739

https://bugzilla.redhat.com/1898741

Plugin Details

Severity: High

ID: 143370

File Name: redhat-RHSA-2020-5239.nasl

Version: 1.7

Type: local

Agent: unix

Published: 12/1/2020

Updated: 7/21/2021

Dependencies: ssh_get_info.nasl, redhat_repos.nasl

Risk Information

CVSS Score Source: CVE-2020-26968

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:firefox

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/30/2020

Vulnerability Publication Date: 11/17/2020

Reference Information

CVE: CVE-2020-16012, CVE-2020-26951, CVE-2020-26953, CVE-2020-26956, CVE-2020-26958, CVE-2020-26959, CVE-2020-26960, CVE-2020-26961, CVE-2020-26965, CVE-2020-26968

RHSA: 2020:5239

IAVA: 2020-A-0537-S, 2020-A-0533-S

CWE: 79, 120, 212, 354, 358, 416, 451, 829